DiskDevice.h

/* ES40 emulator.
 * Copyright (C) 2007 by the ES40 Emulator Project
 *
 * WWW    : http://sourceforge.net/projects/es40
 * E-mail : camiel@camicom.com
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * 
 * Although this is not required, the author would appreciate being notified of, 
 * and receiving any modifications you may make to the source code that might serve
 * the general public.
 */

/**
 * \file
 * Contains definitions to use a raw device as a disk image.
 *
 * $Id: DiskDevice.h,v 1.3 2008/01/09 10:13:58 iamcamiel Exp $
 *
 * X-1.3        Camiel Vanderhoeven                             09-JAN-2008
 *      Save disk state to state file.
 *
 * X-1.2        Camiel Vanderhoeven                             06-JAN-2008
 *      Support changing the block size (required for SCSI, ATAPI).
 *
 * X-1.1        Camiel Vanderhoeven                             05-JAN-2008
 *      Initial version in CVS.
 **/

#if !defined(__DISKDEV_H__)
#define __DISKDEV_H__

#include "Disk.h"

/**
 * \brief Emulated disk that uses a raw device.
 **/

class CDiskDevice : public CDisk
{
public:
  CDiskDevice(CConfigurator * cfg, CSystem * sys, CDiskController * c, int idebus, int idedev);
  virtual ~CDiskDevice(void);

  virtual bool seek_byte(off_t_large byte);
  virtual size_t read_bytes(void * dest, size_t bytes);
  virtual size_t write_bytes(void * src, size_t bytes);

protected:
#if defined(_WIN32)
  HANDLE handle;
  char * buffer;
  size_t buffer_size;
  size_t dev_block_size;
#else
  FILE * handle;
#endif
  char * filename;


};

#endif //!defined(__DISKFILE_H__)